[MacPorts] #43879: upgrading to 2.3.0 fails in "making installing in doc"

[MacPorts]

#43879: upgrading to 2.3.0 fails in "making installing in doc"
---------------------------+--------------------------------
 Reporter:  djosifovich@…  |      Owner:  macports-tickets@…
     Type:  defect         |     Status:  new
 Priority:  High           |  Milestone:
Component:  ports          |    Version:  2.3.0
 Keywords:                 |       Port:
---------------------------+--------------------------------
 ===> making install in doc
 /usr/bin/install -c -d -o macports -g 42051 -m 0755 "/Realms/MEI/desert-
 plateau/Tools/MacPorts/opt/local"
 /usr/bin/install -c -d -o macports -g 42051 -m 0755 "/Realms/MEI/desert-
 plateau/Tools/MacPorts/opt/local/etc/macports"
 < prefix.mtree /usr/sbin/mtree -U -e -p "/Realms/MEI/desert-
 plateau/Tools/MacPorts/opt/local" > /dev/null
 mtree: line 6: unknown group 42051
 make[1]: *** [install] Error 1
 make: *** [install] Error 1
 Command failed: cd /Realms/MEI/desert-
 plateau/Tools/MacPorts/opt/local/var/macports/sources/rsync.macports.org/release/tarballs/base
 && CC=/usr/bin/cc OBJC=/usr/bin/cc ./configure --prefix=/Realms/MEI
 /desert-plateau/Tools/MacPorts/opt/local --with-tclpackage=/Library/Tcl
 --with-install-user=macports --with-install-group=42051 --with-directory-
 mode=0755 --enable-readline && make SELFUPDATING=1 && make install
 SELFUPDATING=1
 Exit code: 2
 Error: Error installing new MacPorts base: command execution failed
 To report a bug, follow the instructions in the guide:
     http://guide.macports.org/#project.tickets
 Error: /opt/local/bin/port: port selfupdate failed: Error installing new
 MacPorts base: command execution failed

 ----------------

 The above occurred from "sudo port -v selfupdate" on updated 10.9.3
 running on MBP.

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Ticket URL: <https://trac.macports.org/ticket/43879>
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